Phillips' exploration of Arthur Fleck, who is indelibly portrayed by Joaquin Phoenix, is of a man struggling to find his way in Gotham's fracturedsociety. A clown-for-hire by day, he aspires to be a stand-up comic at night...but finds the joke always seems to be on him. Caught in a cyclical existence between apathy and cruelty, Arthur makes one bad decision that brings about a chain reaction of escalating events in this gritty character study.